Title:
Ventilator control device
United States Patent 2814977
US Patent References:
/0181272.html
- - 0181272

/0735733.html
- - 0735733

Ventilator
- - 1493655

Louver ventilator
- - 1677421

Automatic ventilator
- - 1737054


Inventors:
Noll, Frank P.
Publication Date:
12/03/1957
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Assignee:
Noll, Frank P.
Primary Class:
454/256
Other Classes:
236/49.500, 454/309
International Classes:
F24F11/053; F24F11/04
US Patent References:
1865981Air conditioning unit
2084470Steam trap
2159498Ventilating apparatus
2474760Automatic ventilator
2529462Ventilator
2537315Outlet control
2552735Thermostatic window ventilator
2754748Vent hood and mounting therefor for laundry dryer ducts
Foreign References:
GB392686A